Gene expression data (Affymetrix platform).
Collected from the blood of: - 20 healthy patients - 40 patients diagnosed with sporadic Parkinsons disease
Arranging samples by condition
Filter out AFFX related spikes
Reshaping into tidy format
Mapping probe IDs to genes using Affymetrix database
Sorting samples
p-value = 0.3512 ## Results - Diff. Expression of known biomarkers
p-value = 0.348 ## Kegg enrichment